<html>
    <head>
        <title>user</title>
        <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
    </head>
    <body>
        <form action="user.php" method="GET">
            <div>
                用户：<input type="text" name="username" placeholder="输入用户名"/>
            </div>
            <div>
                密码：<input type="password" name="password" title="8个字符"/>
            </div>
            <input type="submit" value="提交"/>
        </form>
    </body>
</html>